From the given data, the figure is
Let BC = Height of the kite from the ground, BC = 60 m
AC = Inclined length of the string from the ground and A is the point where string of the kite is tied.
To Find: Length of the string from the ground i.e. the value of AC
sin 60° = BC/AC
⇒ √3/2 = 60/AC
⇒ AC = 40√3 m
Thus, the length of the string from the ground is 40√3 m.